Table 3 Relative odds of concussion according to multiple risk behaviour quartile within grade 6–8 students and grade 9–10 students
From: Adolescents’ engagement in multiple risk behaviours is associated with concussion
Multiple risk behaviour quartile | Unadjusted model, OR (95% CI) | Adjusted model, * OR (95% CI) |
|---|---|---|
Grade 6–8 students (n = 1976) | ||
Quartile 1 (referent) | 1.00 | 1.00 |
Quartile 2 | 1.19 (0.80, 1.83) | 1.10 (0.68, 1.77) |
Quartile 3 | 1.31 (0.86, 1.99) | 1.22 (0.76, 1.96) |
Quartile 4 | 3.50 (2.40, 5.08) | 2.94 (1.90, 4.56) |
Grades 9–10 (n = 1083) | ||
Quartile 1 (referent) | 1.00 | 1.00 |
Quartile 2 | 2.35 (1.16, 4.74) | 2.21 (1.05, 4.65) |
Quartile 3 | 2.94 (1.49, 5.82) | 2.71 (1.32, 5.56) |
Quartile 4 | 4.74 (2.47, 9.09) | 4.67 (2.33, 9.35) |